Re: mac addresses
On Sun, Jul 27, 2003 at 08:41:15PM -0400, Greg Folkert wrote:
> On Sun, 2003-07-27 at 20:16, Joyce, Matthew wrote:
> > Does anyone know of a tool or util which can list all the mac addresses
> > being used on a lan ?
> > I'm trying to discover if foreign devices are being connected over the
> > weekend.
> >
> > Ideally I'd like to be able to compare one list with another and see the
> > difference.
> You have to have a node on the segment you want to watch, and then use
> "arp"
>
> It has a few variations of usage, but should be able to cover your
> needs.
One addition to this is to send a ping to broadcast before running arp,
unless it's filtered out every machine on the subnet will reply so your
arp table will have the full list.
--
Michael Heironimus
Reply to: